The correct option is D Theomania
The word for the phrase 'The foolish belief that one is God' is Theomania. Option A 'Blasphemy' is something that is said or done which shows that you do not respect God. Option B 'Theocracy' is a rule of government where priests rule in the name of God. Option C 'Paranoia' an extreme and unreasonable feeling that other people do not like you or are going to harm or criticize you. Thus, the options A, B and C are incorrect and the correct word for the given phrase is Option D, Theomania.